Machine for dressing sticks to polygonal form



` tion being through the center.

JOS. IV.. KILLAM, OF EAST IILTON, NEW HAMPSHIRE.

MACHINE FOR DRESSING STICKS TO POLYGONAL FORM.

Specicaton of Letters Patent No. 14,136, dated January 22, 1856.

To all whom it may concern:

Be it known that I JOSEPH WV. KILLAM, of East IVilton, in the county of Hillsboro and State ofNew Hampshire, have invented a new and Improved Machine for Planing the Several Sides of Polygonal Sticks of Timber at One Operation; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l, is a longitudinal vertical section of my improvement, the plane of sec- Fig. Q, is a plan or top view of ditto. Fig. 3 is a transverse vertical section of ditto, (w) (m), Fig. 1, showing the plane of section. Fig. 4, is a transverse vertical section of ditto, (y) (y), Fig. 1, showing the plane of section. Fig. 5, is a transverse vertical section of the bed and one of the guide plates; (2) Fig. 1, shows the plane of section.

Similar letters of reference indicate corresponding parts in the several figures.

T0 enable those skilled in the art to make anduse my invention, I will proceed to describe its construction and operation.

A, represents a rectangular frame constructed in any proper manner to support the working parts. On the cross pieces of the framing A, there are placed chairs (o) (5') which may be constructed of cast iron and in-the chairs (b) a metallic bed B, is secured. This bed in the drawings is represented of V form as the machine represented is intended for planing four sided or rectangular sticks of timber.

The bed is formed in three parts as shown clearly in Fig. l, and the center part rests upon slides (c) which are allowed to work up and down in the chairs (5'). The slides (c) and center portion of the bed are 0perated or adjusted by cams (cl) (d) which are attached to the ends of a shaft C, which has an arm D, attached to it, the outer end of the arm being fitted on a vertical rod E, which has a screw thread and nut (e) on its upper end, see Figs. 1 and 5 F, F', represent feed rollers which are hung on transverse shafts Gr, G, on the front part of the frame A. The lower shaft G, works in permanent bearings, but the bearings of the upper shaft G, are formed in slides (f) which are fitted in suitable guides H, attached vertically to the frame A.

The lower feedl roller F, is attached permanently to the lower shaft G, but the upper feed roller F is fitted loosely on the upper shaft Gr. The peripheries of the feed rollers are grooved in V form as shown in Figs. 2, 3, and corresponding with the form of the bed B. The periphery of the lower feed roller F, is in line with the bed B, and between the first and center portions of it, as clearly shown in Fig. 1.

H, is a transverse shaft which works in permanent bearings on the fralne A. This shaft has a hub or head I, hung permanently upon it. This hub or head resembles the feed rollers in form it having a 0'rooved periphery of V form. Cutters are attached to the outer sides of the hub or head, and their cutting edges pass through slots or openings so as to slightly project beyond the beveled surfaces of t-he periphery of the hub or head. The hub or head is placed between the center and last portion of the bed B, and in such position that the edges of the cutters (la) will be in exact line with the last portion of the bed B.

J, is a transverse shaft which has a hub or head K, upon it with cutters attached. This hub or head is precisely similar in construction to the hub or head I, and the cutters attached to it in the same manner. The hub or head is clearly shown in Fig. 4. The bearings of the shaft J, are formed in slides (j) which are tted in vertical guides K', attached to the frame A. The slides are adjusted or raised and lowered by screw rods (7c) which are operated by the bevel gear (l) and shaft (m) shown clearly in Fig. 4. The shaft J, may also be moved or adjusted longitudinally in its bearings by means of a screw (n) which passes through an arm (o) attached to one end `of the shaft, see Figs. Q and 4.

L, represent guide plates which are made of a suitable length and of the same form as the bed B. These guide plates are placed upon or over the bed B, and have weights (p) attached to them, which weights are graduated in weight in proportion to the size of the sticks to be planed so as not to spring the sticks if crooked but simply to hold them steady while being pushed over the center portion of the bed B.

The hubs or heads I, K, are driven by a belt M, which passes around a pulley N, at one end of the driving shaft O, and around pulleys at the ends of the shafts H, J. The feed rollers F, F', are driven by gear wheels P, which are operated by a loose pulley Q, on a shaft R, said pulley being thrown in and out of gear with the shaft R, by a clutch S, shown in Fig. 3.

Operation: The sticks to be planed are placed between the feed rollers F, F, by which they are fed between the bed B, and guide plates L. The cutters (la) on the hub or head I, plane the two under sides of the stick, and the cutters on the hub or head K, plane the two upper sides, and the stick if winding or crooked will be planed perfectly straight, because the feed rollers F, F, are placed at such distance from the hub or head I, that the stick to be planed passes entirely out from between the feeding rollers F', F', before the cutters (7L.) on the head I, act upon it and the center portion of the bed B, may be raised or lowered to the requisite height and t-he shaft J, may also be raised or lowered by turning the shaft (m).

By the above improvement it will be seen that the four sides of the stick will be planed straightand out of wind at one operation. The sticks should be at most a trifle shorter than the center portion of the bed B, so that the sticks may be properly presented to the cutters. In case hexagonal or other polygonal shaped sticks are to be planed the hubs or heads I, K, bed B, and guide plates L,

are made of a corresponding form so that all of the sides will be planed at one operation.

It will be seen that in planing four sided sticks it is not essential that the sides be equal in breadth, because the upper feed roller F, and also the upper hub or head K, may be moved laterally, the shaft J, being adjusted by turning the screw and the feed roller F, being placed loosely on its shaft will adjust itself; by this arrangement two opposite sides of the stick may be much broader than the other sides and still be planed provided the cutters have suflicient breadth.

Having thus described my invention, I do not claim any of the parts of the above described machine separately but what I claim as new and desire to secure by Letters Patent, is-

Planing at one operation sticks of timber of polygonal form, straight and out of wind, without confining the same to a carriage, by using the combination and arrangement of the feed rollers F, F, and the bed B, and the guide plates L, and weights (p) with the rotary cutter heads I, K, substantially as shown and described.

JOSEPH w. KILLAM.

Witnesses:

GEORGE N. DANrnLs, II. NEWTON GRAY. 

